druid filter conf does not effect

[pan3793]

Enviroment

JDK Version: Oracle JDK 1.8.0_162

SpringBoot Version: 2.0.5.RELEASE

Starter Version: 2.2.1 (lastest at 20180919)

Describe

configurations at spring.datasource.druid.filter.*** does not effect. Actually there do load and create filter beans, but those filter beans does not inject into druid datasource bean.

Analyze

both at alibaba original druid-starter & this dynamic stater, loading spring.datasource.druid.filter.*** conf first, but then,

1. at alibaba original druid-starter, it use DruidDataSourceWrapper to init druid data source, @Autowird inject the filter beans into ds;
2. at this dynamic stater, just invoke setter to set spring.datasource.druid.filter.dynamic.datasource.*.filters strings to ds props (DataSourceFactory line 134), implicit invoke FilterManager.loadFilter() (DruidAbstractDataSource line 1325), it just new** a filter object without load any configuration instead of loading bean from spring.

[huayanYu]

so it is, but I dont know how to resolve it.. item datasource may need different filter

[pan3793]

when use multi ds on ali original starter, it share fitlter beans first, and use reflection to create anothter filters which just in there own conf. it may be a solution.

[huayanYu]

the latest 2.2.3 version support global DruidConfiguration. However,I can not use filterBean, I use DatasourceFactory to create Datasource. If you have any idea, pls PR